Obsessed with the weight of the bike!!!
Well, I decided I would like to see the SB-5 getting some fat, so it complies with the 2011 Worlds rules that state minimum weight for the Stock class will be 1900 gram.
The bike in kit form with complete TT front brake kit, paint and my heaviest batteries came to 1654 gram. So, it was time to make it heavier! First, I removed 36 grams, which was the brake kit and then started adding! Read on:
After discussing it over the fora, TT-Tom suggested lead stripes around the battery box.
Doing it, it gave me a battery box weighing about 187 gr.
I had to remove the front brake!
So... where else to find some more weight?!
start looking at the wheels:
SB-5 kit front wheel.
ZH-racing front wheel. Now we are going somewhere!
SB-5 kit rear wheel with bolts.
ZH-racing rear wheel, complete with all bolts.
The TT nitro rear wheel and the ZH-racing weighed almost the same. The TTn wheel is 3 grams lighter...
So, how do we add weight at the wheels?
SB-5 kit front wheel, with PMT 200 tire and black SB-5 insert.
TT nitro front wheel with PMT 200 tire and "curly-hair" insert.
ZH-racing front wheel with PMT 100 tire and black SB-5 insert.
ZH-racing rear wheel with PMT 100 tire and black SB-5 insert. (Without the hub).
TT nitro rear wheel with PMT 100 tire and black SB-5 insert.
Kit wheel with PMT 200 tire and black SB-5 insert.
Ricou-Corps wheel with beadlocks with PMT 200 tire and black SB-5 insert.
So far so good, then!
So far the bike has went up to 1880 grams, so we probably need some more weight to be added. Since it's a small quantity needed, it will probably be of the Tire-shop self-sticking variety, like those they put on real cars' wheels for balancing. Notice the scratchbars around the rider's neck! Oh, the battery is the heaviest one I could find: A 293 gram. Gens-Ace 5000/50C.
This was achieved with the Ricou-Corps rear wheel and the ZH-Racing front wheel, both fitted with PMT tires and TT black inserts, plus all the lead around the battery box.
A good start, indeed, but it remains to test the handling, now!
Next in the list to do/try: KP-designs wheels and hubs, to be used with TT SB-5 rims, Edi Winter's swingarm box, longer front fork legs.